- Washable Premium Memory Foam: Our office chair seat cushion is crafted from 100% pure memory foam, which conforms to your body using your natural heat for personalized comfort. The ergonomic "U" shaped hollow design provides superior support for the coccyx, alleviating pressure on your hips during extended periods of sitting. - Convenience: The non-slip rubber bottom ensures the cushion remains securely in place, even during movement. The cover is machine washable with a zippered design for easy removal and cleaning. A built-in handle allows for effortless transport. - Multiple Uses: This versatile cushion supports spinal recovery for issues such as lower back pain, disc herniation, coccyx injury, and sciatica. Measuring 18.11'' x 14.17'' x 3.15'', it is compatible with a variety of seating options, including office chairs, home desk chairs, car seats, gaming chairs, mobility scooters, automotive seats, and wheelchairs. It is also ideal for travel, sporting events, and pregnancy. - Material Safety: The seat cushion is made from safe, non-toxic materials with no harmful additives. Its premium memory foam rebounds quickly, maintaining its original shape for consistent use. This cushion also adds height to any seat, enhancing overall comfort. Experience improved comfort and support in every setting with our premium memory foam seat cushion.